Order Aritodactyl Flashcards
aritodactyl
even-toed
early aritodactyl
small/raccoon sized
share dental characteristics w/cetaceans and hippos
compete with perissodactyls for resources
morphology
multi chambered “stomach” (actually modified esophagus)
split into ruminating and ruminating
non-ruminating aritodactyl members
Family Camelida
Family Suidae
Family Tayassuidae
Family Camelida
camels, alpacas, llamas
forestomach not true rumen but 3 seperate chambers that play the same role
these are digitgrade w/toes dorsally instead of hooves
ONLY DIGITGRADE UNGULATE
dentition: top inscisive pad but corner incisor or lateral inscisor is caniniform
Family Suidae
pigs, warthogs simple stomach, no fermentation chamber 2-4 hooves on ground large ever-growing canines pigs are omnivores
Family Tayassuidae
pecarry
smaller than pigs
more hair than pigs
ruminating artiodactyls characteristics
upper inscisors absent and replaced with cutaneous pad upper canines usually absent lower canines inscisiform cheek teeth selenodontal and hypsodontal typically 32 teeth chew their cud
selenodontal
cresent shaped ridges
ruminating artiodactyl families
Family
Family Antilocapridae
Family Giraffidae
Family Cervidae
Family Antilocapridae
"antelope-goat"/pronghorn horns on both sexes and don't shed completely but do drop "sheath" annually which is of dermal origin 53mph sprint 40mph maintain hate to jump adaptations for endurance run
adaptations for endurance run
very large lung with huge surface area
increased hemoglobin
increased myoglobin
increased mitochondira
Family Tragulidae
mouse deer
Family Giraffidae
giraffe or okapia africa/sahara fur covered horns don't shed horns part of skull 18 inch tongue tick, densely furred lips 3 cervical vertebrae with ball and socket joints males fight with neck huge heart: 25 lbs 2ft long
adaptations for huge heart (giraffe)
high HR, 150
arteries highly elastic and supportive
veins pseudo pump blood from limbs and slow flow back from head
